High-pressure vapor-liquid equilibrium data of the 10-component system hydrogen, carbon monoxide, carbon dioxide, water, methane, ethane, propane, methanol, ethanol, and 1-propanol at 313.4 and 333.4 K

Suzuki, Kazuhiko; Sue, Haruhusa; Itou, Masahiro; Smith, Richard L.; Inomata, Hiroshi; Arai, Kunio; Saito, Shozaburo

doi:10.1021/je00059a021

Cited by 27 publications

(34 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 shows a comparison of our data for the CO 2 (1)+n-propanol (2) system at 313.15 K with the litera- ture data of Suzuki et al [4] for the corresponding temperature. As can be seen, our experimental data agreed well with the literature data reported by Suzuki et al [4]. The experimental data of the isothermal VLE for the binary system of CO 2 (1)+n-propanol (2) are shown in Table 2.…”

Section: Resultsmentioning

confidence: 72%

“…To develop such a new process, a knowledge of the solubility of high boiling components at elevated pressures and temperatures near the critical temperature of the solvents is essential. However, very few data have been reported on the literature [4]. In developing the SCORR process in our lab, more intensive VLE data were needed at a temperature range between (313.15 and 343.15) K. So, in the present study, we measured the isothermal vapor-liquid equilibrium data for the binary CO 2 +n-propanol system at (313.15, 323.15, 333.15 and 343.15) K. At each temperature, 8-9 measured data points were reported.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Vapor-liquid equilibria of carbon dioxide+n-propanol at elevated pressure

Yim

Jung

Lim

2010

Korean J. Chem. Eng.

View full text Add to dashboard Cite

High-pressure vapor-liquid equilibrium data were measured for the binary mixtures of CO 2 +n-propanol at various isotherms (313.15-343.15 K). The vapor and liquid compositions and pressures were measured in a circulation-type apparatus. To facilitate easy equilibration, both vapor and liquid phases were circulated separately in the experimental apparatus and the equilibrium composition was analyzed by an on-line gas chromatograph. The experimental data were compared with literature results and correlated with the Peng-Robinson (PR) equations of state using the Wong-Sandler mixing rules. Calculated results with PR EOS showed good agreement with our experimental data.

show abstract

Section: Resultsmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Vapor-liquid equilibria of carbon dioxide+n-propanol at elevated pressure

Yim

Jung

Lim

2010

Korean J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Several sources of data are available for the methanol + hydrogen mixture (24)(25)(26). The most consistent data sets (25,26) were fitted with the SR EOS.…”

Section: Resultsmentioning

confidence: 99%

Solvent‐based fatty alcohol synthesis using supercritical butane. Thermodynamic analysis

Brands

Poels

Dimian

et al. 2002

J Americ Oil Chem Soc

View full text Add to dashboard Cite

Conventional liquid-phase fatty ester hydrogenolysis processes are necessarily operated at high pressures owing to the limited solubility of hydrogen in the reaction medium. In a solvent-based process this problem can be overcome, but recycling and product-solvent separation may turn out to be difficult. An alternative is the use of supercritical solvents, for which the solubility of fatty esters and fatty alcohols is high. Dropping the pressure into the subcritical domain allows for easy product separation and reactant recycle. In the present work we have analyzed the hydrogenolysis of methyl palmitate in supercritical butane. A reliable estimation of properties of the supercritical mixture can be obtained by fitting experimental vapor-liquid equilibrium data with Schwatzentruber-Renon cubic equation of state. The reaction mixture remains supercritical for a maximum pressure of 9 MPa and temperature of 470 K for mole fractions of hydrogen and methyl palmitate of 0.1 and 0.025, respectively. In these conditions an equilibrium conversion of more than 99% can be reached. An industrial process is feasible.Paper no. J9819 in JAOCS 79, 75-83 (January 2002).The industrial route from natural fats and oils to fatty alcohols generally proceeds via hydrolysis of triglycerides to fatty acids, esterification to methyl esters, and hydrogenolysis of methyl esters to fatty alcohols (1). The last step is usually a catalytic process carried out in slurry or fixed-bed reactor using hydrogen between 20 and 30 MPa (2,3). Such high pressure is required in view of the low solubility of hydrogen in the methyl ester, and because of limitations of chemical equilibrium and catalyst activity. High operating pressures and a very large excess of hydrogen, 20 to 100 times the amount of fatty acid, seriously affect capital and operating costs. This explains the efforts made to arrive at low-pressure processes and low hydrogen-to-ester molar feed ratios.Oleofina (4) developed a special catalyst for a liquid-phase process at pressures below 6 MPa. Few details about the catalyst have been disclosed, and to our knowledge this process and catalyst have not been commercialized.Davy McKee Corporation reported promising developments (5). Using a vapor-phase process, they claim to obtain full methyl ester conversion at 0.7-7 MPa. The main disadvantage of this process lies in the fact that it relies on the volatility of the fatty ester feed. Especially C 16 and C 18 esters have such low vapor pressures that an excessive hot hydrogen recycle is required for their vaporization.In our group, a liquid-phase ester hydrogenolysis process based on an inert solvent was investigated (6). Small linear alkanes such as octane or high-boiling mineral white oil are suitable solvents. These solvents act as hydrogen carriers and allow fairly high hydrogen-to-ester molar ratios. By using solvents such as octane in combination with highly active Cu/ZnO/SiO 2 catalysts, full conversion could be reached at hydrogen pressures as low as 8 MPa. Because of the low hydrogen pre...

show abstract

“…The binary parameters C ij and C ji in the NRTL model were determined also by fitting to the experimental VLE data. The VLE data shown in literature [10,[14][15][16] have been correlated in this study for three binary systems of CO 2 + 1-propanol, CO 2 + propyl acetate and propyl acetate + 1-propanol. The optimally fitted temperature-independent binary interaction parameters in either the VDW1 or Huron-Vidal mixing model were evaluated through flash calculations by minimizing the following objective function:…”

Section: Vle Calculation Modelsmentioning

confidence: 99%

“…The volumes were determined as 21.83 and 4.52 L for the vapor and liquid sampling loops, respectively.The calibration of GC was made by plotting the peak areas against the number of moles of the pure gas or liquid sample, as shown in previous literature [10,11]. A digital balance (Mettler Toledo AX105, with accuracy of 2 ± 10 −5 g) was used to evaluate the weight and number of moles for the liquid samples.…”

Section: Calibration Proceduresmentioning

confidence: 99%

Vapor–liquid equilibria for the ternary mixture of carbon dioxide+1-propanol+propyl acetate at elevated pressures

Cheng

Tang

Chen

2006

Fluid Phase Equilibria

View full text Add to dashboard Cite

High-pressure vapor-liquid equilibrium data of the 10-component system hydrogen, carbon monoxide, carbon dioxide, water, methane, ethane, propane, methanol, ethanol, and 1-propanol at 313.4 and 333.4 K

Abstract: Isothermal vapor-liquld equilibrium data for the system H2 C,H,OH + n-C3H,0H were measured wlth a static type equilibrium apparatus at 313.4 and 333.4 K and in the 8-17-MPa pressure range. + CO + C02 + HZO + CH, + C2He + C3Ha + CH3OH +

Cited by 27 publications

References 0 publications

Vapor-liquid equilibria of carbon dioxide+n-propanol at elevated pressure

Vapor-liquid equilibria of carbon dioxide+n-propanol at elevated pressure

Solvent‐based fatty alcohol synthesis using supercritical butane. Thermodynamic analysis

Vapor–liquid equilibria for the ternary mixture of carbon dioxide+1-propanol+propyl acetate at elevated pressures

Contact Info

Product

Resources

About